Lan design pdf

A short summary of this paper. The campus network system is a very large and complicated system. The campus network construction in the application of network technology is the important branch of LAN technology to build and management. This paper introduces the goal of campus network design and the selection of network technology, network equipment selection and so on, and gives the concrete network topology diagram through the example of the campus network design and construction process.

As a campus to cultivate the talents of the century, to achieve network management, teaching is very important. So the campus network is a very interactive and professional LAN. Multimedia teaching software development platform, multimedia presentation classrooms, teacher preparation system, library access system, test database, etc. If a school includes a number of professional disciplines, you can also form a number of local area networks, and through wired connection.

Campus network should have teaching, management and communication three functions. Demand analysis 1. Network requirements Jinling Middle School, in order to hot pursuit of the pace of the times, development and inter-school, static resource sharing, dynamic information release, distance learning and collaborative work stage, the development of school education modernization, decided to build their own campus network, strive for early realization of education informatization.

After the completion of the campus network, the computer into the teaching of all aspects, which can lead to teaching methods, teaching methods, teaches tools of major reforms. To improve the quality of teaching, and promote the development of China's education modernization plays an immeasurable role.

Through the school information construction professionals to communicate, due to participate in network applications more teachers and students, and contains a large number of multimedia information, so large-capacity, high-speed data transmission is an important requirement for the network.

The campus network requirements for each user's use can be audited afterwards, to locate the IP address and the user connected to the port and login user name, limit the use of the account port.

The campus network requirements to achieve the dynamic control of user bandwidth. The campus network to achieve multicast services. The campus network requirements in the school scale continues to expand, the number of users continues to increase, requiring the network has a very good scalability, according to the need to gradually smooth upgrade to 10 Gigabit backbone connection.

Network management platform to achieve the management of network resources, network security access control. And on the platform can easily develop the required network applications. Network environment The school has 3 student dormitories, 5 floors per building, 10 students on each floor, each room to provide a network node; teacher quarters 3 households, a total of 7 layers, each household provides a network node ; Teaching building 5, a total of 5 layers, each layer has 10 classrooms, each classroom to provide a network node; library and electronic reading room in the same building, a total of 1 electronic reading room, each electronic reading room needs 10 network nodes; training building a total of 7 layers per layer requires 20 nodes.

Design goals The implementation of this project will greatly improve the teaching and research conditions of the school. Design of campus network structure The construction of the campus network will design based from the actual situation and characteristics of school. In the design process, pay attention to the practicality of the campus network and the combination of advanced, and the use of mature network technology to ensure the practicality of the campus network.

Principles for overall design As the campus network started late, and the school funds are not very adequate, cannot be in one step. On the other hand, the level of application of the school is more uneven, some systems even if the installation is not used, therefore, in the construction of the campus network process, the system should always implement the application-oriented, pragmatic approach, the principle of economy.

The school network needs to complete, including the book information, school administrative office and other integrated business information management system for the majority of faculty and students to provide a network environment for teaching and research work of the advanced platform.

Scalability and scalability of the system to be scalable and scalable, with the business growth and application level, the network of data and information flow will grow exponentially, the need for good network scalability, and can continue to upgrade with the development of technology.

Equipment should be used in line with international standards of systems and products to ensure that the system has a long vitality and scalability to meet future requirements of the system upgrade. At the same time as far as possible to choose a high degree of integration, the module can be a common product for easy management and maintenance.

Security, confidentiality of the network system should have good security. As the campus backbone network for multiple user intranet to provide interconnection and support a variety of business, requiring flexible and effective security control, but also should support the virtual private network to provide multi-level security options.

In the secondary campus network erection, it may through subnet and the switch of VLAN to achieve network security. To meet the system goals and functions as the goal, to ensure that the overall program design is reasonable to meet the needs of users, while maintaining the use of the system maintenance, as well as the future system of secondary development and transplantation. In order to understand the importance of hierarchical design more clearly, it is best to understand the OSI Open Systems Interconnection reference model.

The OSI model simplifies the communication requirements between computers. Similarly, the use of a hierarchical model to design a network can simplify the requirements of networking. Hierarchical network design 1.

Easy savings In the use of hierarchical model, the various levels of their duties, no longer in the same platform to consider all the things. Hierarchical model the modular nature of the network to make every layer can make good use of bandwidth, reducing the waste of system resources. Easy to expand In the network design, modularity has the characteristics of network growth so that the complexity of the network can be limited to the subnet, and will not spread to other parts of the network.

Easy to troubleshoot Hierarchical design can break down the network topology into easy-to-understand subnets, and network managers can easily determine the range of network failures, simplifying the troubleshooting process. Solution According to the distribution of the buildings between the schools, the central room can be set in the training building, because the building has 6 layers, can be set in the middle floor, for example, 2 to 5 floor in a layer.

Network topology According to the network environment, we can draw the campus network topology. In the network topology diagram, you can see that more than one server is divided into a VLAN. The campus network topology is shown in Figure 1 Figure 1. Telecommunication networks. Network Topologies. Network Security Diagram.

Cisco Network Diagram Software. Network Mapper. Network Components. Cafe and Restaurant Floor Plans. Restaurants and cafes are popular places for recreation, relaxation, and are the scene for many impressions and memories, so their construction and design requires special attention. Restaurants must to be projected and constructed to be comfortable and e.

AWS Architecture Diagrams. Use them in technical documentation, advertising and marketing materials, in specifications, presentation slides, whitepapers, datasheets, posters, etc.